CXX      protocol.o
protocol.cpp:113:3: warning: identifier ‘constexpr’ is a keyword in C++11 [-Wc++0x-compat]
   constexpr uint32_t delta = 0x9E3779B9;
   ^
protocol.cpp: In function ‘void {anonymous}::XTEA_encrypt_1x8(const uint8_t*, uint8_t*, const uint32_t*)’:
protocol.cpp:113:3: error: ‘constexpr’ was not declared in this scope
protocol.cpp:113:13: error: expected ‘;’ before ‘uint32_t’
   constexpr uint32_t delta = 0x9E3779B9;
             ^
protocol.cpp:115:8: warning: ‘auto’ changes meaning in C++11; please remove it [-Wc++0x-compat]
   for (auto i = 0u; i < 32; ++i) {
        ^
protocol.cpp:115:13: error: ‘i’ does not name a type
   for (auto i = 0u; i < 32; ++i) {
             ^
protocol.cpp:115:21: error: expected ‘;’ before ‘i’
   for (auto i = 0u; i < 32; ++i) {
                     ^
protocol.cpp:115:21: error: ‘i’ was not declared in this scope
protocol.cpp:117:11: error: ‘delta’ was not declared in this scope
    sum += delta;
           ^
protocol.cpp: In function ‘void {anonymous}::XTEA_encrypt_4x8(const uint8_t*, uint8_t*, const uint32_t*)’:
protocol.cpp:137:3: error: ‘constexpr’ was not declared in this scope
   constexpr uint32_t delta = 0x9E3779B9;
   ^
protocol.cpp:137:13: error: expected ‘;’ before ‘uint32_t’
   constexpr uint32_t delta = 0x9E3779B9;
             ^
protocol.cpp:139:8: warning: ‘auto’ changes meaning in C++11; please remove it [-Wc++0x-compat]
   for (auto i = 0u; i < 32; ++i) {
        ^
protocol.cpp:139:13: error: ‘i’ does not name a type
   for (auto i = 0u; i < 32; ++i) {
             ^
protocol.cpp:139:21: error: expected ‘;’ before ‘i’
   for (auto i = 0u; i < 32; ++i) {
                     ^
protocol.cpp:139:21: error: ‘i’ was not declared in this scope
protocol.cpp:144:11: error: ‘delta’ was not declared in this scope
    sum += delta;
           ^
protocol.cpp: In member function ‘void Protocol::XTEA_encrypt(OutputMessage&)’:
protocol.cpp:173:40: error: invalid conversion from ‘char*’ to ‘uint8_t* {aka unsigned char*}’ [-fpermissive]
  uint8_t* buffer = msg.getOutputBuffer();
                                        ^
protocol.cpp:179:36: error: ‘key’ was not declared in this scope
   XTEA_encrypt_4x8(buffer, buffer, key);
                                    ^
protocol.cpp:185:36: error: ‘key’ was not declared in this scope
   XTEA_encrypt_1x8(buffer, buffer, key);
                                    ^
make[1]: *** [protocol.o] Error 1